Attention Yu-Gi-Oh! collectors and duelists! Here's a card that serious players and collectors will definitely want in their arsenal - the Red Dragon Archfiend/Assault Mode from the Structure Deck: The Crimson King. This is the SDCK-EN017 Common 1st Edition version, making it a solid addition to any collection or deck build. If you're familiar with the 5D's era, you know how powerful and iconic this card is. The Assault Mode transformation brings some serious firepower to your dueling strategies. As a Common card, it's accessible for players who want to incorporate this beast into their decks without breaking the bank, but the 1st Edition status adds that collectible appeal. The card features that awesome Red Dragon Archfiend artwork that looks menacing and powerful - exactly what you'd expect from one of the signature cards from Jack Atlas's arsenal. Whether you're building a dedicated Red Dragon Archfiend deck, working on an Assault Mode strategy, or just collecting cards from the Crimson King structure deck, this is a must-have. The condition is typically great straight from the structure deck, perfect for play or display. I've found it works really well in dragon-themed decks or any strategy that benefits from having powerful boss monsters with game-ending potential. For collectors, having the complete set of cards from SDCK is more satisfying when you've got all the key pieces like this one. If you're trying to recreate anime-accurate decks or just love the design and power of the Red Dragon Archfiend series, grabbing this Assault Mode version is totally worth it. It's one of those cards that looks cool in your binder and plays even better on the field. Definitely a solid pick-up for any Yu-Gi-Oh! enthusiast's collection!